High [CVE-2026-70495] cluster-wide impersonate on users/groups shared across 4 pods grants hub system:masters
This high-severity Red Hat Linux advisory covers CVE-2026-70495 affecting Red Hat Advanced Cluster Management for Kubernetes 2.
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Summary
A flaw was found in search-v2-operator. This component's `search-serviceaccount` has overly broad permissions, allowing it to impersonate users and groups across the entire cluster.
If an attacker gains access to any of the pods running under this service account, they could exploit this to achieve `system:masters` access, granting them full control over the cluster. This escalation of privilege poses a severe risk to the integrity and control of the Red Hat Advanced Cluster Management for Kubernetes environment.
Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). Weakness: CWE-269.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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